One thing I have understood in Life is,
1) If I think positive, I feel Good Immediately.
2) If I think negative, I feel Bad Immediately.
Then I analyzed, what? is Thinking?
Answer I found was "Thinking is just a play of words, words & words"
Think about the word "Problem" and "Challenge". Both say same thing, but
the later? feels good and former bad.
Infact, I am using a iPhone called "iVocab" by Lokesh Hanumappa which helps me in a terrrifc way to learn words and track feelings of the words.

thanks a lot? for ALL these? videos!!!!!!!!!! it really helps me to study Business English. and by the way it helps to study economy in my university because there are so many words during the study...I mean it is easy to learn them if you know English)